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2 years ago

The price of apples went from $0.30 per lb to $0.90 per lb in three years. Find the rate of change of the price of apples.

Mathematics

2 answers:

Iteru [2.4K]2 years ago

8 0

<h2>Answer:</h2>

Hence, the rate of change of the price of apples is:

$ 0.20 per year.

<h2>Step-by-step explanation:</h2>

Let P denote the price of apples.

It is given that the initial price of apples is: $ 0.30 per lb.

i.e. P(0)=$ 0.30 per lb.

Also, the price of the apples after three years is: $ 0.90 per lb.

i.e. P(3)=$ 0.90 per lb.

Hence, the rate of the change of the price of apples is calculated by:

$Rate\ of\ change=\dfrac{P(3)-P(0)}{3-0}$

Now on putting the value in the formula we obtain:

$Rate\ of\ change=\dfrac{0.90-0.30}{3-0}\\\\\\Rate\ of\ change=\dfrac{0.60}{3}\\\\\\Rate\ of\ change=0.20$

The rate of change is:

$ 0.20 per year.

Brut [27]2 years ago

3 0

90c-30c=60cent change

60cents/3years=20cents/year

It changed 20cents a year

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